How to Determine the Probability of the Higgs Boson Detection
... To carry to the extremes, can the non-discovery be a hint or even ‘proof’ the existence of a Higgs multiplett at higher energies ? Since supersymmetric theories usually do not predict mass ranges, they seem to be ‘earthquake-safe’ against falsification. All these questions require reliable estimates ...
... To carry to the extremes, can the non-discovery be a hint or even ‘proof’ the existence of a Higgs multiplett at higher energies ? Since supersymmetric theories usually do not predict mass ranges, they seem to be ‘earthquake-safe’ against falsification. All these questions require reliable estimates ...
A short introduction to unitary 2-designs
... A set {Uk } satisfying this property is called a unitary 2-design [2, 9]. It turns out that such a set does exist, and it is in fact a very familiar set: the Clifford group. This is an extremely useful result, because Clifford group elements can be synthesized by circuits using only O(n2 ) 1and 2-qu ...
... A set {Uk } satisfying this property is called a unitary 2-design [2, 9]. It turns out that such a set does exist, and it is in fact a very familiar set: the Clifford group. This is an extremely useful result, because Clifford group elements can be synthesized by circuits using only O(n2 ) 1and 2-qu ...
Quantum Teleportation
... case immediately at some distant location. The first idea how the dream of teleportation could be realized in practice might be the following: From a classical point of view the object to be teleported can fully be characterized by its properties, which can be determined by measurement. To create a ...
... case immediately at some distant location. The first idea how the dream of teleportation could be realized in practice might be the following: From a classical point of view the object to be teleported can fully be characterized by its properties, which can be determined by measurement. To create a ...
Introduction and Theoretical Background
... of the W and Z bosons are predicted by the SM. In 1983, the W and Z bosons were discovered by the UA1 and UA2 experiments [20, 21] [22, 23] with masses consistent with the theoretical expectation, another triumph of the SM. In the 1990s, the LEP [24] and SLC [25] e+ e− colliders began measuring Z bo ...
... of the W and Z bosons are predicted by the SM. In 1983, the W and Z bosons were discovered by the UA1 and UA2 experiments [20, 21] [22, 23] with masses consistent with the theoretical expectation, another triumph of the SM. In the 1990s, the LEP [24] and SLC [25] e+ e− colliders began measuring Z bo ...
PDF
... generated within the same device. Furthermore, since entanglement is realized from a single device, the number of photon-source devices in an entangling circuit can be halved. Furthermore, we show here that the resonant photon source can be operated with pump-laser wavelengths that span approximatel ...
... generated within the same device. Furthermore, since entanglement is realized from a single device, the number of photon-source devices in an entangling circuit can be halved. Furthermore, we show here that the resonant photon source can be operated with pump-laser wavelengths that span approximatel ...
Discovery of Higgs Boson - High Energy Physics
... Different types of quantum orbits M. Herndon, Phys 301 2017 ...
... Different types of quantum orbits M. Herndon, Phys 301 2017 ...
Polarized Light and Quantum Mechanics: An Optical
... Draw a narrow line in black ink, about 1 cm in length, on a sheet of transparency film and project the image of the line to a screen using an overhead projector. The light producing the image is unpolarized. Now place a Polaroid film over the transparency film. The light producing the filtered image ...
... Draw a narrow line in black ink, about 1 cm in length, on a sheet of transparency film and project the image of the line to a screen using an overhead projector. The light producing the image is unpolarized. Now place a Polaroid film over the transparency film. The light producing the filtered image ...
Order by disorder in a four-flavor Mott insulator on the fcc lattice
... A large variety of ground states has been put forward for the SU(4) Heisenberg models. A quantum liquid with algebraically decaying spin-spin correlations is formed in the one-dimensional chain [4,27] (which is Bethe ansatz solvable [28]), and there is strong evidence for a similar critical state in ...
... A large variety of ground states has been put forward for the SU(4) Heisenberg models. A quantum liquid with algebraically decaying spin-spin correlations is formed in the one-dimensional chain [4,27] (which is Bethe ansatz solvable [28]), and there is strong evidence for a similar critical state in ...
What is the Higgs Boson?
... • One physical scalar boson: Higgs boson whose mass is unknown Discovery of the Higgs boson would help verify this approach Otherwise, much head-scratching and new theories! J. Nielsen ...
... • One physical scalar boson: Higgs boson whose mass is unknown Discovery of the Higgs boson would help verify this approach Otherwise, much head-scratching and new theories! J. Nielsen ...
Attractive photons in a quantum nonlinear medium
... light9. Interactions between individual photons are being explored in cavity quantum electrodynamics, where a single, confined electromagnetic mode is coupled to an atomic system10–12. Our approach is to couple a light field propagating in a dispersive medium to highly excited atomic states with str ...
... light9. Interactions between individual photons are being explored in cavity quantum electrodynamics, where a single, confined electromagnetic mode is coupled to an atomic system10–12. Our approach is to couple a light field propagating in a dispersive medium to highly excited atomic states with str ...
Quantum Computing Using Linear Optics
... been considered, they are thought to be either too weak9 or accompanied by too much loss10 to be useful for practical quantum CNOT gates. It has recently been shown, however, that near-perfect optical quantum logic gates, such as a CNOT gate, can be implemented without the need for a nonlinear inter ...
... been considered, they are thought to be either too weak9 or accompanied by too much loss10 to be useful for practical quantum CNOT gates. It has recently been shown, however, that near-perfect optical quantum logic gates, such as a CNOT gate, can be implemented without the need for a nonlinear inter ...
Science Journals — AAAS
... enough quantum systems to chain together many gates into circuits. One example of this is the quantum Fredkin gate, which requires at least five two-qubit gates (4) to be implemented in the standard circuit model. Thus, despite featuring prominently in quantum computing (5–7), error correction (8, 9 ...
... enough quantum systems to chain together many gates into circuits. One example of this is the quantum Fredkin gate, which requires at least five two-qubit gates (4) to be implemented in the standard circuit model. Thus, despite featuring prominently in quantum computing (5–7), error correction (8, 9 ...
Phase Shifting of an Interferometer using Nonlocal Quantum-State Correlations
... introduction of the phase between the product states of the initial entangled state. In our experiments, 915.6-nm polarization-entangled photons were produced by parametric down-conversion of the 457.8-nm light of an argon laser 共100 mW兲 via two stacked 1-mm-thick type-I beta-barium-borate crystal ...
... introduction of the phase between the product states of the initial entangled state. In our experiments, 915.6-nm polarization-entangled photons were produced by parametric down-conversion of the 457.8-nm light of an argon laser 共100 mW兲 via two stacked 1-mm-thick type-I beta-barium-borate crystal ...
Science Journals — AAAS
... enough quantum systems to chain together many gates into circuits. One example of this is the quantum Fredkin gate, which requires at least five two-qubit gates (4) to be implemented in the standard circuit model. Thus, despite featuring prominently in quantum computing (5–7), error correction (8, 9 ...
... enough quantum systems to chain together many gates into circuits. One example of this is the quantum Fredkin gate, which requires at least five two-qubit gates (4) to be implemented in the standard circuit model. Thus, despite featuring prominently in quantum computing (5–7), error correction (8, 9 ...
Electronic structure, plane waves and pseudopotentials
... these core electrons altogether! We consider each atom’s nucleus and core electrons as an ion, and produce a pseudopotential that has the same effect on the outer electrons. Not only have pseudopotentials reduced the cut-off energy we need, they’ve also let us concentrate on the valence electrons, r ...
... these core electrons altogether! We consider each atom’s nucleus and core electrons as an ion, and produce a pseudopotential that has the same effect on the outer electrons. Not only have pseudopotentials reduced the cut-off energy we need, they’ve also let us concentrate on the valence electrons, r ...
Experimental Optimal Cloning of Four
... BS1. A second beam splitter (BS2) is then used to separate the two photons emerging from the same output port of BS1, allowing postselection of this outcome by coincidence detection. On both output modes k1 and k2 of BS2 we perform a full ququart state measurement, by combining a standard polarizati ...
... BS1. A second beam splitter (BS2) is then used to separate the two photons emerging from the same output port of BS1, allowing postselection of this outcome by coincidence detection. On both output modes k1 and k2 of BS2 we perform a full ququart state measurement, by combining a standard polarizati ...
PDF
... Linear optical quantum computation (LOQC) has recently attracted great interests following the demonstration [1] that a scalable quantum computer based on linear optical components is possible. It has also been known that linear optical systems could achieve non-scalable quantum computation by encod ...
... Linear optical quantum computation (LOQC) has recently attracted great interests following the demonstration [1] that a scalable quantum computer based on linear optical components is possible. It has also been known that linear optical systems could achieve non-scalable quantum computation by encod ...
Closed Timelike Curves Make Quantum and
... sought to understand the implications of CTCs, supposing they existed, for quantum mechanics, computation, and information [9, 8, 5]. In this paper we contribute to the latter topic, by giving the first complete characterization of the computational power of CTCs. We argue that if CTCs containing po ...
... sought to understand the implications of CTCs, supposing they existed, for quantum mechanics, computation, and information [9, 8, 5]. In this paper we contribute to the latter topic, by giving the first complete characterization of the computational power of CTCs. We argue that if CTCs containing po ...
Average-Case Quantum Query Complexity
... We use the following modi cation of Simon's problem [18]:3 Input: X = (x1 ; : : : ; x2n ), where each xi 2 f0; 1gn. Output: f (X ) = 1 i there is a non-zero k 2 f0; 1gn such that xik = xi 8i. Here we treat i 2 f0; 1gn both as an n-bit string and as a number, and denotes bitwise XOR. Note that th ...
... We use the following modi cation of Simon's problem [18]:3 Input: X = (x1 ; : : : ; x2n ), where each xi 2 f0; 1gn. Output: f (X ) = 1 i there is a non-zero k 2 f0; 1gn such that xik = xi 8i. Here we treat i 2 f0; 1gn both as an n-bit string and as a number, and denotes bitwise XOR. Note that th ...
Phys. Rev. Lett. 107, 250501 - APS Link Manager
... four-mode linear cluster state and a Bell-measurementbased input coupling, a typical set of single-mode Gaussian operations such as squeezing and Fourier transformations was recently experimentally demonstrated [13]. The final missing element towards implementing arbitrary multimode Gaussian transfo ...
... four-mode linear cluster state and a Bell-measurementbased input coupling, a typical set of single-mode Gaussian operations such as squeezing and Fourier transformations was recently experimentally demonstrated [13]. The final missing element towards implementing arbitrary multimode Gaussian transfo ...
Realization of a Knill-Laflamme-Milburn controlled
... non-linear sign-shift (NS) gate that relies on the interaction with a single auxiliary photon at a beam splitter. It is thus based on the efficient optical nonlinearity induced by single photon sources and detectors. While a measurement induced nonlinearity has been verified by a conditional phase s ...
... non-linear sign-shift (NS) gate that relies on the interaction with a single auxiliary photon at a beam splitter. It is thus based on the efficient optical nonlinearity induced by single photon sources and detectors. While a measurement induced nonlinearity has been verified by a conditional phase s ...
Research Statement
... However, the theory has not completely caught up with the experiment. While the photonic platform for quantum information processing has much in its favor, it suffers from imperfect detector efficiency and photon loss which gets worse as the number of optical components is scaled up. It is not under ...
... However, the theory has not completely caught up with the experiment. While the photonic platform for quantum information processing has much in its favor, it suffers from imperfect detector efficiency and photon loss which gets worse as the number of optical components is scaled up. It is not under ...
Intensity and State Estimation in Quantum Cryptography
... output at the receiver’s end is not affected. There is also the problem of generating single photons [9] as well as lack of availability of single photon detectors. ...
... output at the receiver’s end is not affected. There is also the problem of generating single photons [9] as well as lack of availability of single photon detectors. ...
Part III
... P(i) Tr ˆi ˆ The set probability operators describing a measurement is called a probability operator measure (POM) or a positive operator-valued measure (POVM). The probability operators can be defined by the properties that they satisfy: ...
... P(i) Tr ˆi ˆ The set probability operators describing a measurement is called a probability operator measure (POM) or a positive operator-valued measure (POVM). The probability operators can be defined by the properties that they satisfy: ...